Photographic-printing machine



G. C. HULSE.

PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILED DEC-.20, I920- Patented Nov. 14, 1922.

Z SHEETS-SHEE'I 1,

FIGURE 5 INVENTOR FIGURE 2.

ATTORNEL G. C. HULSE.

PHOTOGRAPHIC PRINTING MACHINE.

APPLICATION FILED DEC. 20. 1920.

1,435,850. PatentedNofi 14,1922.

2 SHEETS-SHEEL 2.

I 19 1 FIGURE 4 FIGURE 5 42 0 9 4 FIGURE 6 mvsmofi' ATTORNEY PatentedNv. 14, 1922.

UNITED STATES 1,435,850 PATENT OFFICE.

GEORGE C. HULSE, OF SAN JOSE, CALIFORNIA.

PHOTOGRAPHIC-PRINTING MACHINE.

Application filed December 20, 1920. Serial No. 431,853.

' T all whom it may concern."

Be it known that I, Gaonoa C. Hunsa, a

-citizen of the-United States, and resident machine for printingpictures from a photographic negative.

It is the ob'ect of my invention to provide a machine w erein theprintin paper .may

' be quickly and easily positione and held in place for printing,automatically removed.

from the printing position when the printin has been accomplished, andautomatica ly deposited in a suitable receptacle in a predeterminedposition.

In the drawing: I

Figure 1- is a vertical cross section through the machine.

Figure 2 is a view on line 22 of Figure l.

Fi ure 3 is an enlarged detail elevation of one isc.

Figure 4 is an enlarged view of a part of the negative holder.

Figure 5 is a detail of a portion of the film holder.

Figure 6 is a section on line 66 of F ig ure 4. e e

Referring more particularly to the drawing, 1 indicates a suitable tablehaving a box2 set therein at an angle as shown and open at its front end3. A slot 4 is formed in table 1 adjacent to the front edge of box 2 andprovided with a rearwardly directed chute 5 discharging into a box 6supported beneath table 1 by supports 7.- The front 8 of box 6 ispreferably left open to permit the easy removal of prints 9 therefrom.In box 2' are arranged incandescent lights IO-10 in an electric circuit11 including any well known form of switch 12 Which is pro vided with'apush button .13 spring actuated to an open position and located at thelower front edge of box 2 and extending a distance inefront thereof asshown.

At 14 is shown a frame. having a glass plate 15 fitted therein andhinged to the upper front edge of, box 2' asat 16, the said frameextending over push-button 18 in such a manner as to engage the samewhen pressure is exerted uponsaid frame. At 17 is a vignetting memberslidably mounted on rod 18 which is in turn mounted u on brackets 19 onframe 14 so as to lie para lel with the lower edge of said frame andspaced a distance therefrom. At 20 is a second vignet-' ting memberslidably mounted on rod 21 WhlCh is in turn mounted upon brackets 22 onframe 14 so as to lie parallel with the right hand ed e of said frameand spaced a distance there rom. 3

Near the lower right hand edgeof glass plate 15 and mounte on pins232425' set in'frame 14 are three-discs 262728 respectively, each havingthe ordinal numbers up to 9 punched therein near itsouter edge as shown,each disc being in fact a revolving stencil. I

At 29 is shown a door mounted upon the upper edge of frame 14 by hinges30, the said door havin its lower portion 31 hingedly connected t eretoas at 32 and to turn upwardly. To door 29is connected a spring 33attached to a supporting rod 34 which is in turn mounted upon box 2. Anincandescent light 35 is mounted in box 2 and operatively mounted in anelectric circuit not shown, and controlled by switch 36. This light isnormally turned on while lights 101O are normally out. In using thisprinting'machine thenegative is arranged as indicated at 37. A supply ofsensitized paper is placed conveniently at hand and the operator laysone of these in position over the negative 37 and discs 26'-'27--28 asindicated at 38, usin say, his right hand. With the left hand e bringsdoor 29 -31 down to the position indicated in dotted lines at 29 -31 thelower edge of door 29 engaging the paper 38 and hold-' ing it in lace sothat the operator may reach for anot er piece of sensitized paper withhis right hand. The portion 31 is now brought down upon the paper as at31* against the tension of spring 33 and enough pressure exerted thereonto operate switch 13 and turn on lights 10--10. Usually the exposurerequired is but for a moment only,

and-upon release of the pressure on button through slot 4 into chute 5and thence intobox 6. Since the chute 5 is curved as shown each printdischarged therefrom falls into box 6 with its sensitized face upwards.Of

course all of the prints could be discharged face downwards-if sodesired by a rear-- as at to act as guides for the negative 37 and holdmember 20 in contact with glass 15. The membersfll'l and 20 may bearranged to accommodate any size of negative by sliding them on theirrespective rods 18 and 21. The lower edge of the negative in the presentcase rests on pins LO- 40 above discs 2627--28 so that with the discsarranged to print a given number through the numerals stenciled therein,the said number will be printed upon each paper exposed simultaneouslywith the printing of the picture from the negative.

Astrip .is inserted under strips 39-39 and held in place by pins 40-40as at 41 to sup ort cut films. This strip preferably exten s upwardlyjust over the lower edge of glass 15 and is provided with orifices42-43-44 so as to act as a mask for the figures on discs 2627--28 exceptthose in the u ermost itions arran ed to rint a desii'fid numbgr mn thesensiti zed pa per placed thereover.

From the abovedescription it is clear that with quickly printing paperssuchas are commonly usedin amature photography a large number of printsmay be made from a single negative in a very short space of time, infact as fast'as the operator can pick up the sensitized sheets andlaythem over the negative, the paper not being touched by the hands fromthe time it is placed on the negative until it is removed from box 6.

an illuminating means arranged therein, a frame carrying a translucentplate hin ed.

to the upper edge thereof and extending over the up er end, thereof, adoor for 010s ing over t e translucent plate, .a spring an illuminatingmeansarranged therein, a

'frame carrying a translucent plate hinged to the upper edge thereof andextending over the upper end thereof and normally spaced a istancetherefrom at its lower edge, a normally open switch operatively insertedin the wiring system of said illuminating means, and engaging said frameto space the latter normally from the box, means arranged to receivearticle from the frame when in its normal position, a jointed doorhinged to the upper edge pf said frame and adapted to cover the same, asupport mounted on said box and extending forwardly thereof, and aresilient connection between said support and one portion of said door.

3..A printing machine including a box arranged at an angle to ahorizontal plane, an illuminating means operatively mounted therein,means movable from a normal position for holding a'iprinting sheet for apre-' determined period in operative relation to said illuminatingmeans, a curved chute arranged to receive each sheet from said holdingmeans, after it' has returned to its normal position and turn the sameface upward and a receptacle arranged to receive the sheets from saidchute.

4. A photographic printing machine com-- prising a lamp box, aprint-discharge chute spaced therefrom, a frame hinged to the box andnormally. spaced therefrom at one side and disposed at an inclination todischarge a print therefrom into the chute, said frame being adapted formoving from its normal position ,for closing down onto the box, andmeans for urging the frame to its normal position.

GEORGE o. HULSE.

